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Add and Multiply Complex Numbers

Related Topics:
Common Core (The Complex Number System)
Common Core for Mathematics

Examples, solutions, videos, and lessons to help High School students know how to use the relation i2 = –1 and the commutative, associative, and distributive properties to add, subtract, and multiply complex numbers.

Suggested Learning Targets

  • I can add complex numbers
  • I can subtract complex numbers
  • I can multiply complex numbers

Common Core: HSN-CN.A.2

The following table shows how to add and multiply complex numbers. Scroll down the page for more examples and solutions.

Add and Multiply Complex Numbers

Add and Subtract Complex Numbers

Adding Complex Numbers Complex Numbers - Graphing, Adding, Subtracting.

Adding and Subtracting Complex (Imaginary) Numbers. Introduction to complex numbers. Adding, subtracting and multiplying complex numbers.

Multiply Complex Numbers

Multiplying Complex Numbers. Complex Numbers: Multiplying - Ex 1.
Examples of multiplying two complex numbers and simplifying. Complex Numbers: Multiplying - Ex 2.
Example of multiplying three complex numbers and simplifying. Multiply Complex Numbers
This video provides examples of how to multiply complex numbers.

Rotate to landscape screen format on a mobile phone or small tablet to use the Mathway widget, a free math problem solver that answers your questions with step-by-step explanations.

You can use the free Mathway calculator and problem solver below to practice Algebra or other math topics. Try the given examples, or type in your own problem and check your answer with the step-by-step explanations.

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